new evidence is emerging of alleged atrocities. here s a warning, the video is disturbing to watch. nbc news has blurred the most graphic forces. it appears to show arab militias executing a kurd by the roadside. multiple officials teld nbc news that the video appears genuine. they say they include al qaeda and isis supporters. take a look at this video. that s an isis prison coming under fire. detainees scampering for the exits. this was yesterday near the turkey/syria border but today hundreds mores escaping under similar circumstances. there s a lot to discuss with our team of reporters and analysts so we ll get ryeight t it. bill neely in erbil, the capital of afghanistan. what are we learning about the withdrawal of troops?